| 词汇 | genetic drift | 
| 释义 | genetic drift  noun [ U ]  biology specialized uk/dʒəˌnet.ɪk ˈdrɪft/ us/dʒəˌnet̬.ɪk ˈdrɪft/  基因漂变,遗传漂变 a situation in which the frequency of a particular gene in a small population of living things changes without a known cause | 
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